MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION DYNAGEN CRT-D; DEFIBRILLATOR, AUTOMATIC IMPLANTABLE CARDIOVERTER, WITH CRT-D

Model Number G151

Device Problems High impedance (1291); Noise, Audible (3273)

Patient Problem No Clinical Signs, Symptoms or Conditions (4582)

Event Date 12/10/2022

Event Type  malfunction  

Event Description

It was reported that this cardiac resynchronization therapy defibrillator (crt-d) and a non-boston scientific right atrial (ra) lead exhibited intermittent high out of range pacing impedance measurements greater than 2,000 ohms resulting in the device emitting beeping tones.The patient completed a remote home interrogation.Technical services (ts) referred the patient to their physician/clinic.No adverse patient effects were reported.This device remains in service.

Manufacturer Narrative

This product has not been returned to boston scientific, and as a result, laboratory analysis could not be conducted.The associated investigation determined that this device exhibited intermittent impedance measurements with no conclusive evidence of a malfunction or inadequate lead-to-device connection; please refer to the description for more information regarding the specific circumstances of this event.Investigation has determined that this type of event is likely the result of an intermittent high impedance condition associated with the device spring contact and lead terminal ring.A design enhancement was implemented in 2020 to stabilize the electrical connection between the spring contact and the lead terminal.

Event Description

It was reported that this cardiac resynchronization therapy defibrillator (crt-d) and a non-boston scientific right atrial (ra) lead exhibited intermittent high out of range pacing impedance measurements greater than 2,000 ohms resulting in the device emitting beeping tones.The patient completed a remote home interrogation.Technical services (ts) referred the patient to their physician/clinic.No adverse patient effects were reported.This device remains in service.

• Brand Name: DYNAGEN CRT-D
• Type of Device: DEFIBRILLATOR, AUTOMATIC IMPLANTABLE CARDIOVERTER, WITH CRT-D
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112
• Manufacturer (Section G): BOSTON SCIENTIFIC CORPORATION; cashel road; clonmel ; EI
• Manufacturer Contact: timothy degroot ; 4100 hamline avenue north; saint paul, MN 55112 ; 6515826168
• MDR Report Key: 16268792
• MDR Text Key: 308610801
• Report Number: 2124215-2023-03679
• Device Sequence Number: 1
• Product Code: NIK
• UDI-Device Identifier: 00802526534638
• UDI-Public: 00802526534638
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: P010012/S341
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Consumer
• Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup
• Report Date: 02/21/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Lay User/Patient
• Device Expiration Date: 05/17/2019
• Device Model Number: G151
• Device Catalogue Number: G151
• Device Lot Number: 122250
• Was Device Available for Evaluation?: No
• Initial Date Manufacturer Received: 01/24/2023
• Initial Date FDA Received: 01/30/2023
• Supplement Dates Manufacturer Received: 02/20/2023
• Supplement Dates FDA Received: 02/21/2023
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 05/31/2017
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Patient Age: 69 YR
• Patient Sex: Male